Soil Review

3. decomposed plants and animals
7. the method used for quickly identifying if soil is sand, silt, or clay.
9. the middle sized soil particle
10. A layer of soil
11. an unclean matter when on someone's clothes
14. A cross section view of multiple soil horizons
15. a mixture of organic matter, minerals, gases, liquids, and organisms that together support life.
16. soil that is equal parts clay, silt, and sand

1. what percent of the globe can be farmed (rounded)
2. proportion of sand, silt and clay sized particles that make up how the soil feels.
4. soil provides this to plants (nitrogen, potassium, phosphorous)
5. the mineral represented as Fe on the period table that gives a red color to the subsoil
6. the horizon that consists of living things (worms)and is near the surface
8. continuous, solid layer of rock at the bottom of the soil profile
9. the largest soil particle
12. the horizon made of broken up rocks
13. the smallest soil particle
15. the horizon that is rich in minerals and can be red in color